GyanOne received 2 Kudos for post Re: If a is a positive integer, and if the units digit of a^2 is 9 and the.

GiverPostDate
mcwagsRe: If a is a positive integer, and if the units digit of a^2 is 9 and the13-Feb-2017
aks1985Re: If a is a positive integer, and if the units digit of a^2 is 9 and the09-Aug-2011

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